Function csml_interpreter::interpreter::variable_handler::get_string_from_complex_string

pub fn get_string_from_complex_string(
    exprs: &[Expr], 
    interval: Interval, 
    data: &mut Data<'_>, 
    msg_data: &mut MessageData, 
    sender: &Option<Sender<MSG>>
) -> Result<Literal, ErrorInfo>